Wigan Athletic have named Uwe Rösler as their new manager after Brentford confirmed that the former Manchester City player had left the League One club.

Brentford said that they received an approach from Wigan on Thursday and "reluctantly" agreed to let Rösler leave once compensation had been agreed.

Rösler will watch Wigan's Championship match with Millwall on Saturday from the stands, leaving Graham Barrow to take charge of the team. He starts work from tomorrow and will be introduced formally on Monday.

Rösler has just won the League One Manager of The Month award after Brentford's run of six wins and a draw in seven league matches put the London side firmly back in the promotion race.

The Wigan chairman Dave Whelan described his new appointment – the successor to Owen Coyle, who left "by mutual agreement" last Monday – as "one of the brightest young managers in the Football League and his ambition is to manage in the Premier League".

He added: "He impressed me enormously when I spoke to him, he has a strong philosophy about how to play the game and has a desire to shape all aspects of the long term future of the club. I think he can and will achieve great things here at Wigan Athletic."

Rösler took first team training at Brentford on Friday morning, and prepared the team for Saturday afternoon's FA Cup second round tie against Carlisle United.

He was due to take the team for the Carlisle match and make a decision afterwards but talks progressed quickly and terms were agreed late on Friday night. The Brentford assistant manager Alan Kernaghan and first team coach Peter Farrell, supported by the sporting director Mark Warburton, will oversee the squad for the Carlisle match.

Warburton said: "Uwe leaves the club in an excellent condition and I know that he and I both share the absolute belief that this squad of players can move the club forward to achieve its aims and ambitions."